:root {
  --bg:        #07090c;
  --bg-elev:   #0c1118;
  --panel:     #0f151d;
  --panel-hi:  #121a24;
  --border:    #1a2230;
  --border-hi: #2a3645;
  --text:      #d6dde5;
  --muted:     #6b7a8a;
  --muted-2:   #4c5966;
  --amber:     #ff8c1a;
  --amber-dim: #b8640e;
  --amber-bg:  #1a1005;
  --cyan:      #5acef1;
  --green:     #4caf50;
  --red:       #ef5350;
  --yellow:    #d4a017;
  --blue:      #4f8fc0;

  --mono: "JetBrains Mono", "IBM Plex Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; height: 100%; background: var(--bg); color: var(--text);
  font: 13px/1.5 var(--mono);
  font-feature-settings: "zero" 1, "ss01" 1, "calt" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
a { color: var(--cyan); text-decoration: none; }
::selection { background: var(--amber-dim); color: var(--bg); }

.classify {
  background: var(--amber-bg); color: var(--amber);
  text-align: center; font-size: 10px; letter-spacing: 0.3em;
  padding: 3px 0; border-bottom: 1px solid var(--amber-dim);
  text-transform: uppercase;
}

header.app {
  display: flex; align-items: center; gap: 18px;
  padding: 7px 14px; background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  height: 42px;
}
header.app .brand {
  color: var(--amber); font-weight: 600; letter-spacing: 0.16em;
  text-transform: uppercase; font-size: 12px;
}
header.app .brand .slash { color: var(--muted); margin: 0 4px; }
header.app nav { display: flex; gap: 2px; }
header.app nav a {
  color: var(--muted); padding: 5px 12px;
  border: 1px solid transparent; font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.14em;
}
header.app nav a.active { color: var(--text); border-color: var(--border-hi); background: var(--panel); }
header.app nav a:hover { color: var(--text); }
header.app .spacer { flex: 1; }
header.app .clock { color: var(--muted); font-size: 10px; letter-spacing: 0.1em; }

.kv { color: var(--muted); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; }
.kv b { color: var(--text); font-weight: 500; margin-left: 5px;
        letter-spacing: 0.02em; text-transform: none; }
.label { text-transform: uppercase; font-size: 10px; letter-spacing: 0.18em; color: var(--muted); }

.panel { background: var(--panel); border: 1px solid var(--border); }
.panel > .ph {
  padding: 6px 10px; font-size: 10px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--muted);
  background: var(--bg-elev); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.panel > .ph .tag { color: var(--amber); }
.panel > .pb { max-height: 440px; overflow: auto; }

table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { padding: 6px 10px; text-align: left; border-bottom: 1px solid var(--border);
         vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 10px;
     text-transform: uppercase; letter-spacing: 0.12em;
     background: var(--bg-elev); position: sticky; top: 0; }
tbody tr:hover { background: var(--panel-hi); }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.muted-2 { color: var(--muted-2); }
.green { color: var(--green); }
.red   { color: var(--red); }
.amber { color: var(--amber); }
.cyan  { color: var(--cyan); }

.dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%;
       background: var(--muted-2); margin-right: 7px; vertical-align: middle; }
.dot.live   { background: var(--green);  box-shadow: 0 0 6px var(--green);  animation: pulse 1.5s infinite; }
.dot.paused { background: var(--yellow); box-shadow: 0 0 6px var(--yellow); }
.dot.stale  { background: var(--red);    box-shadow: 0 0 6px var(--red); }
@keyframes pulse { 0%,100% { opacity: 1 } 50% { opacity: 0.35 } }

.badge {
  display: inline-block; padding: 1px 6px; font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase; border: 1px solid;
}
.badge.YES { color: var(--green); border-color: var(--green); }
.badge.NO  { color: var(--red);   border-color: var(--red); }

select.mode, input.txt {
  background: var(--bg); color: var(--text); border: 1px solid var(--border-hi);
  padding: 3px 22px 3px 8px; font: inherit; cursor: pointer;
  text-transform: uppercase; font-size: 11px; letter-spacing: 0.12em;
  appearance: none; -webkit-appearance: none; border-radius: 0;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%),
                    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 10px) 50%, calc(100% - 6px) 50%;
  background-size: 4px 4px;
  background-repeat: no-repeat;
}
select.mode:focus { outline: none; border-color: var(--amber); }

.empty { padding: 28px 12px; color: var(--muted-2); text-align: center;
         font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; }
pre.trace { white-space: pre-wrap; word-break: break-all; font-size: 11px;
            color: var(--muted); margin: 4px 0 0; }

/* hidden on desktop, shown as hamburger in mobile media query below */
.hamburger { display: none; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-hi); }
::-webkit-scrollbar-thumb:hover { background: var(--muted-2); }

/* ────── docs + feature pages ────── */
.page {
  max-width: 1200px; margin: 0 auto; padding: 16px; display: grid; gap: 16px;
}
.prose { font-size: 13px; line-height: 1.65; color: var(--text); }
.prose p { margin: 0 0 10px; }
.prose code {
  background: var(--bg-elev); border: 1px solid var(--border);
  padding: 1px 5px; font-size: 12px;
}
.prose ul { padding-left: 18px; margin: 4px 0 12px; }
.prose li { margin: 4px 0; }
.h1 { font-size: 18px; font-weight: 500; letter-spacing: 0.01em; margin: 0; }
.h2 { font-size: 10px; letter-spacing: 0.24em; color: var(--muted);
       text-transform: uppercase; margin: 10px 0 6px; }
.lede { color: var(--muted); font-size: 13px; line-height: 1.6; }
.chip {
  display: inline-block; padding: 2px 8px; font-size: 9px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--amber); border: 1px solid var(--amber-dim);
}
.back {
  color: var(--muted); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; display: inline-block; margin-bottom: 4px;
}
.back:hover { color: var(--amber); }

/* ────── narrow screens (tablet + phone) — hamburger takes over ────── */
@media (max-width: 900px) {
  header.app {
    flex-wrap: wrap;
    padding: 0;
    gap: 0;
    align-items: stretch;
    height: auto;
    min-height: 0;
    position: relative;
  }
  header.app > .brand {
    padding: 12px 14px;
    font-size: 12px;
    letter-spacing: 0.14em;
    flex: 1 1 auto;
  }
  header.app > .spacer { display: none; }
  header.app > .clock {
    padding: 0 10px;
    font-size: 9px;
    align-self: center;
  }

  .hamburger {
    display: inline-flex; flex-direction: column; justify-content: center;
    align-items: center; gap: 4px;
    background: transparent; border: 1px solid var(--border-hi);
    width: 38px; height: 38px; padding: 0; margin: 5px 10px 5px 2px;
    cursor: pointer; color: var(--text);
    flex-shrink: 0;
    transition: border-color 120ms linear, color 120ms linear;
  }
  .hamburger span {
    display: block; width: 16px; height: 1.5px; background: currentColor;
    transition: transform 180ms ease, opacity 120ms ease;
  }
  header.app.nav-open .hamburger {
    border-color: var(--amber); color: var(--amber);
  }
  header.app.nav-open .hamburger span:nth-child(1) {
    transform: translateY(5.5px) rotate(45deg);
  }
  header.app.nav-open .hamburger span:nth-child(2) { opacity: 0; }
  header.app.nav-open .hamburger span:nth-child(3) {
    transform: translateY(-5.5px) rotate(-45deg);
  }

  header.app > nav {
    flex-basis: 100%;
    display: none;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--border);
    background: var(--bg);
  }
  header.app.nav-open > nav { display: flex; }
  header.app > nav a {
    padding: 14px 16px;
    border: none;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--text);
  }
  header.app > nav a:last-child { border-bottom: none; }
  header.app > nav a.active {
    color: var(--amber);
    background: var(--panel);
    box-shadow: inset 3px 0 0 var(--amber);
  }

  .panel > .pb { max-height: 52vh; -webkit-overflow-scrolling: touch; }
  th, td { padding: 6px 10px; }
  .page { padding: 14px; gap: 14px; }
}

/* phone-only typography polish */
@media (max-width: 640px) {
  html, body { font-size: 12px; }
  .classify { font-size: 9px; letter-spacing: 0.2em; }

  .kv, .kv b { font-size: 11px; }
  th { font-size: 9px; letter-spacing: 0.08em; padding: 6px 8px; }
  td { padding: 6px 8px; font-size: 11px; }
  .panel > .ph { padding: 8px 12px; font-size: 10px; letter-spacing: 0.18em; }
  .empty { padding: 18px 10px; }
  .badge { font-size: 9px; padding: 1px 5px; }
  input, select, textarea { font-size: 16px !important; }

  .page { padding: 12px; gap: 12px; }
  .h1  { font-size: 17px; }
  .h2  { margin: 8px 0 4px; }
  .lede { font-size: 12px; }
  .prose { font-size: 12px; line-height: 1.6; }
  .prose code { font-size: 11px; }
  .back { font-size: 10px; }
}

/* landscape phones: tighter header + shallower panels */
@media (max-width: 900px) and (orientation: landscape) and (max-height: 500px) {
  .classify { padding: 1px 0; font-size: 8px; }
  header.app > .brand { padding: 8px 12px; }
  header.app > .clock { padding: 0 10px; }
  .hamburger { height: 32px; width: 32px; margin: 3px 8px; }
  .panel > .pb { max-height: 40vh; }
}